单词 | magnetic ink |
例句 | If a fabric or device printed with this magnetic ink breaks, the particles attract one another and close the gap. Wearable Devices That Could Heal Themselves When They Break 2016-11-02T04:00:00Z Hi-tech magnetic ink allows counting machines at banks to instantly sort the authentic cash from the fake bills. 'Counterfeiting is an art': Peruvian gang of master fabricators churns out $100 bills 2016-03-31T04:00:00Z |
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